Three items of 19th century jewellery

Three items of 19th century jewellery, including a French gold oval swivel pendant, the central glazed locket compartment containing a hair wheatsheaf constructed of hair, the surmount formed with serpents, 4cm widest, together with a yellow gold, enamel and seed pearl brooch, a trophy of two flaring torches applied to the guilloche enamel centre, within a border of seed pearls, 4.5cm high, and a gold pendant incorporating a metal key, applied with an ornate surround with lambrequins and split ring, 2.5cm wide